linux-kernel - Re: [PATCH v2 2/8] arm64: dts: qcom: apq8016-sbc: add usb support

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Date:	Mon, 22 Feb 2016 10:20:13 +0000
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:	Andy Gross <andy.gross@...aro.org>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2 2/8] arm64: dts: qcom: apq8016-sbc: add usb support

Thanks for the review,

On 22/02/16 05:51, Bjorn Andersson wrote:
> On Wed 10 Feb 03:36 PST 2016, Srinivas Kandagatla wrote:
>
>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>> ---
>>   arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi | 15 ++++++++++
>>   arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi          | 35 ++++++++++++++++++++++
>>   2 files changed, 50 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
>> index cbeee0b..4a79dd9 100644
>> --- a/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
>> @@ -10,4 +10,19 @@
>>   			output-low;
>>   		};
>>   	};
>> +
>> +	usb_id_default: usb_id_default {
>
> Labels are built with _, node names with -.
>
>> +		pinmux {
>> +			function = "gpio";
>> +			pins = "gpio121";
>> +		};
>
> You don't need a separate node to specify function...
>
>> +
>> +		pinconf {
>> +			pins = "gpio121";
>> +			function = "gpio";
>
> ...but if you really want it, then you shouldn't specify the function
> here.
Oops, Will remove this and resend the patch.
>
>> +			drive-strength = <8>;
>> +			input-enable;
>> +			bias-pull-up;
>> +		};
>> +	};
>>   };
>> diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi
> [..]
>> +
>> +	usb_id: usb-id {
>> +		interrupt-parent = <&msmgpio>;
>
> interrupt-parent is part of specifying an interrupt. You're not doing
> that here, so no need to specify a parent.
Yep, will clean this up in next version.
>
>> +		compatible = "linux,extcon-usb-gpio";
>> +		id-gpio = <&msmgpio 121 GPIO_ACTIVE_HIGH>;
>> +		pinctrl-names = "default";
>> +		pinctrl-0 = <&usb_id_default>;
>>   	};
>>   };
>
> Apart from these two nits
>
> Acked-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Thanks,
srini
>
> Regards,
> Bjorn
>